STI9287CA

{
  "slug": "sti9287ca",
  "version": "0.1.0",
  "type": "component",
  "description": "TMI LED Drivers, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "led drivers",
    "sti9287ca",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "sti9287ca.kicad_sym",
    "sti9287ca.kicad_mod",
    "sti9287ca.glb",
    "sti9287ca.step",
    "sti9287ca.lbr",
    "docs/hero.png",
    "docs/sti9287ca-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "sti9287ca-hero.glb",
    "sti9287ca-hero.overlay.json",
    "sti9287ca-etched.glb"
  ],
  "component": {
    "mpn": "STI9287CA",
    "manufacturer": "TMI",
    "package": "SOT-23-6",
    "pin_count": 6,
    "category": "LED Drivers",
    "subcategory": "LED Drivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589042045139243008",
    "parts": {
      "symbol": "sti9287ca.kicad_sym",
      "footprint": "sti9287ca.kicad_mod",
      "model_3d": "sti9287ca-hero.glb",
      "model_3d_plain": "sti9287ca-etched.glb",
      "model_3d_step": "sti9287ca-etched.step",
      "model_3d_step_plain": "sti9287ca.step",
      "lbr": "sti9287ca.lbr"
    },
    "distributor_links": {
      "lcsc": "C840552"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T23:52:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SW",
        "type": "output",
        "description": "Power switch output connected to the inductor as the switch node; the internal 150 mΩ N-channel MOSFET drives this pin, and the SW voltage absolute maximum is -0.3 V to 35 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin for the device."
      },
      {
        "number": "3",
        "name": "FB",
        "type": "input",
        "description": "Output voltage feedback pin that sets the LED current through R1, with a regulated feedback voltage of 250 mV typical for the STI9287CA (242 mV to 258 mV); it is a high-impedance input sensitive to noise."
      },
      {
        "number": "4",
        "name": "EN",
        "type": "input",
        "description": "Chip enable and PWM dimming input that must be driven above 1.5 V to enable the part and below 0.4 V to turn it off, and must not be left floating."
      },
      {
        "number": "5",
        "name": "OVP",
        "type": "input",
        "description": "Over-voltage sense input that measures the output voltage for open-circuit protection and must be connected to the output at the top of the LED string; the OVP threshold is 30 V typical on a rising output voltage."
      },
      {
        "number": "6",
        "name": "IN",
        "type": "power_in",
        "description": "Power supply input with a 2.5 V to 5.5 V operating range that must be closely decoupled to GND with a 1 µF or greater ceramic capacitor."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet does not give an ERC class for SW; 'output' was chosen because it is described as the ; Pin 1 is the lower-left pin when reading the top mark left to right (datasheet page 12 note 5). Pin "
        ],
        "pages_sent": 13,
        "cost_usd": 0.055,
        "at": "2026-10-18T23:50:02"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589042045139243008",
        "pages": 13,
        "sha256": "2b1d97f5672b0764",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 6,
        "described": 6,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "sti9287ca.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "c9fe686b4d1b56927a41fa84a9bc1efb61d8a45a123a3db43bcaa05c2891d635",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "sti9287ca-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          2.8,
          2.9,
          1.55
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d4b1a64559e7207e935327ad6b88f938f73afb03f3f51ce26ceff16553bcb899",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}